topic IO Pin acces through user space = reducing NAND Flash lifetime? in i.MX Processors

IO Pin acces through user space = reducing NAND Flash lifetime?

rkager — Mon, 11 Jun 2018 08:34:30 GMT

Dear community,

we are starting with our first linux project. Before we were just working on micros without OS. As we wonna run the applicaiton in python there is no simple IO register access (we use a MX6ull at the moment). If we toggle a pin (5 leds) through the user space it is always a sysfs access which will result in a NAND Flash access, am I right? As this will cause a reducing of the lifetime of the NAND flash for just blinking a LED? Can this be neglected? Do we have to write a C program which access the IO pin directly to solve this?

Thanks

Re: IO Pin acces through user space = reducing NAND Flash lifetime?

igorpadykov — Mon, 11 Jun 2018 22:45:05 GMT

Hi Reinhard

if toggling pin through the user space will not provide correct nand access

(as defined in nand datasheet), this will not reduce lifetime of the NAND flash.

Best regards
igor
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